Finding the Fourth Proportional to 798,651.55, 1,102,009.05 and 471,919.09
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Solution
The fourth proportional to 798,651.55, 1,102,009.05 and 471,919.09 is: 651,171.48
Step by Step Solution
- Step 1: Write the proportion equation
798,651.55 : 1,102,009.05 = 471,919.09 : x - Step 2: Convert to fraction form
798,651.55/1,102,009.05 = 471,919.09/x - Step 3: Cross multiply
798,651.55x = 1,102,009.05 × 471,919.09 - Step 4: Simplify right side
798,651.55x = 520,059,108,047.77 - Step 5: Solve for x
x = 520,059,108,047.77/798,651.55 - Step 6: Final answer
x = 651,171.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.